Canton climate — normals and trends
Canton (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 1,274 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (25.4 °C on average) and the coldest is January (5.1 °C). Rainfall peaks in March.
Canton averages 46 frost days, 58 hot days (≥ 30 °C) and 127 rainy days per year.
Canton has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 50 to 42 per year over the period.
The hottest day of the period reached 39.9 °C (on 30 June 2012) and the coldest -22.7 °C (on 21 January 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
CantonGeorgia
- coords
- 34.24°, -84.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.7°C
Average daily high
21.1°C
Average daily low
11.0°C
Annual rainfall
1,274mm
Sunshine / day
9.0h
Mean relative humidity
71%
Average peak wind
14.5km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
46 d/yr
Hot days (≥ 30 °C)
58 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
7.3 cm
Average feels-like high
21.0 °C
Average feels-like low
9.8 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
72 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
39.9 °C
30 June 2012
Coldest day
-22.7 °C
21 January 1985
Wettest day
112 mm
10 February 1981
Windiest day
50.7 km/h
5 October 1995
Strongest gust
135.7 km/h
5 October 1995
Hottest feels-like
44.2 °C
30 June 2012
Coldest feels-like
-29.5 °C
21 January 1985
Snowiest day
22.4 cm
13 March 1993
Sunniest day
14.0 h
14 June 2019
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 8.2 °C | -1.9 °C | 78 mm | -49 mm |
| Feb | 15.4 °C | +2.9 °C | 140 mm | +16 mm |
| Mar | 20.1 °C | +3.3 °C | 90 mm | -46 mm |
| Apr | 23.8 °C | +2.2 °C | 140 mm | +26 mm |
| May | 24.6 °C | -1.0 °C | 196 mm | +98 mm |
| Jun | 29.7 °C | +0.4 °C | 122 mm | +29 mm |
| Jul | 32.5 °C | +2.0 °C | 82 mm | -26 mm |
| Aug | 28.6 °C | -1.5 °C | 108 mm | +18 mm |
| Sep | 28.7 °C | +1.4 °C | 37 mm | -49 mm |
| Oct | 22.4 °C | +0.3 °C | 57 mm | -21 mm |
| Nov | 18.3 °C | +2.1 °C | 58 mm | -43 mm |
| Dec | 13.5 °C | +2.0 °C | 44 mm | -75 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Canton?
Canton has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,274 mm of precipitation per year.
What is the hottest day ever recorded in Canton?
The hottest day measured in Canton between 1940 and 2025 was 30 June 2012, reaching 39.9 °C.
What is the coldest day in Canton?
The coldest day measured in Canton between 1940 and 2025 was 21 January 1985, at -22.7 °C.
Does it snow in Canton?
Yes. Canton gets on average 7.3 cm of snow per year and has around 46 frost days.
Has the climate of Canton warmed?
Yes: Canton warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Canton?
The wettest day measured in Canton between 1940 and 2025 was 10 February 1981, with 112 mm of rain in 24 hours.
What was the windiest day in Canton?
The windiest day measured in Canton between 1940 and 2025 was 5 October 1995, with winds reaching 50.7 km/h.
What is the warmest month in Canton?
The warmest month in Canton is July (25.4 °C on average); the coldest is January (5.1 °C).
How much does it rain in Canton?
Canton receives on average 1,274 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Canton?
Canton gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Canton?
The heaviest 24-hour snowfall measured in Canton between 1940 and 2025 was 13 March 1993, with 22.4 cm.
Are there tropical nights in Canton?
Yes: Canton has on average 72 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Canton?
In Canton, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 30 June 2012, and the lowest was -29.5 °C on 21 January 1985.
Compare Canton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Canton